摘要
通过对桩端岩层变形特性及破坏机理的深入分析,针对岩溶及采空区桥梁桩基桩端持力岩层安全厚度的确定进行了较全面的探讨,提出了一系列经济合理、安全可靠、且便于工程应用的计算公式,并对公式的使用范围、注意事项、影响因素以及其合理安全系数的选取等进行了讨论。
Aiming at the safe thickness of the bridge pile end's support rock mass in karst and mining region, the determination method had been comprehensively probed by a thorough analysis of the distortion characteristics and the destroyed mechanism of rock mass at the end of the bridge pile. A series of economic, reasonable and safety formulas have been proposed; and they are easy to apply in engineering. Finally, the problems such as the formula's using range, notices, influencing factor and the reasonable selection of the safety factor have been discussed.
出处
《岩土力学》
EI
CAS
CSCD
北大核心
2004年第1期64-68,共5页
Rock and Soil Mechanics
关键词
岩溶
破坏机理
桩基础
安全厚度
karst
destroyed mechanism
pile foundation
safety thickness
